How much do they cost对还是how much are the cost对
题目
How much do they cost对还是how much are the cost对
How much do they cost对还是how much are they cost对
答案
How much do they cost 对
因为原句里有一个动词了,要用助动词do
举一反三
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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